AT&T (T -3.3%) plans to tap debt markets to help finance its investment plans: its net...

AT&T (T-3.3%) plans to tap debt markets to help finance its investment plans: its net debt-to-EBITDA ratio is expected to rise to 1.8 from 1.42 over the next 2 years. With corporate debt yields remaining extremely low, it wouldn't be surprising if AT&T also used the proceeds to buy back stock, something it has been very fond of doing lately. Some think AT&T's buildout partly stems from its failure (unlike Verizon) to sell off rural assets. "They're doing it because they really have to do it," says analyst Jonathan Chaplin.